/* ============================================================
   Continuum Health — clinical-futurist design system
   Design tokens live here, at the top of the stylesheet.
   ============================================================ */
:root{
  --bg:#0e1621;            /* steel base */
  --bg-2:#0b1119;          /* deeper steel for bands */
  --panel:#131f2c;         /* raised clinical panel */
  --panel-2:#16273a;       /* hover / inner panel */
  --ink:#eaf1f7;           /* cool white */
  --dim:#9fb2c2;
  --faint:#5b6f80;
  --cyan:#4fd6e0;          /* accent */
  --cyan-deep:#2aa6b2;
  --mint:#7be0b0;          /* clinical secondary — "optimal" */
  --amber:#e2b673;         /* "watch" only */
  --line:rgba(234,241,247,.09);
  --line-2:rgba(234,241,247,.05);
  --max:1240px;
  --lead:clamp(148px,22vw,236px);
  --ease:cubic-bezier(.22,.86,.16,1);      /* signature: clinical settle */
  --ease-snap:cubic-bezier(.5,0,.1,1);
  --r:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--bg);color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;font-weight:400;line-height:1.6;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
em{font-style:normal}
::selection{background:var(--cyan);color:#04141a}
img,svg{max-width:100%;display:block}
sup{font-size:.62em;vertical-align:.5em}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- fixed background layers ---------- */
.bg-field{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:58px 58px;mask-image:radial-gradient(120% 100% at 50% 0%,#000 30%,transparent 92%)}
.bg-glow{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(70% 55% at 78% 6%,rgba(79,214,224,.16),transparent 60%),
    radial-gradient(60% 50% at 8% 88%,rgba(123,224,176,.08),transparent 60%)}
body>*:not(.bg-field):not(.bg-glow){position:relative;z-index:2}

/* ---------- type scale ---------- */
.eyebrow,.kicker{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--cyan)}
h1,h2,h3{font-family:"Hanken Grotesk",system-ui,sans-serif;font-weight:700;letter-spacing:-.02em;line-height:1.04}
.hero-title{font-weight:800;font-size:clamp(2.5rem,6.8vw,5.4rem);line-height:1.0;letter-spacing:-.035em}
.hero-title em{color:var(--cyan);font-weight:800}
h2{font-size:clamp(1.9rem,4vw,3rem);font-weight:700;letter-spacing:-.025em}
h3{font-size:1.14rem;font-weight:600;letter-spacing:-.01em}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;justify-content:space-between;align-items:center;
  padding:16px clamp(16px,4vw,44px);
  background:linear-gradient(180deg,rgba(14,22,33,.9),rgba(14,22,33,0));backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px)}
.brand{display:flex;align-items:center;gap:11px;font-family:"Hanken Grotesk",sans-serif;font-size:1.06rem;font-weight:700;letter-spacing:-.01em}
.brand-mark{width:26px;height:26px;flex:none;display:grid;place-items:center;border-radius:8px;
  background:radial-gradient(circle at 34% 28%,rgba(79,214,224,.24),rgba(19,31,44,.9));
  border:1px solid rgba(79,214,224,.28);box-shadow:0 0 18px -6px rgba(79,214,224,.5)}
.brand-mark svg{width:20px;height:20px}
.brand-mark circle{fill:var(--cyan)}
.brand-mark path{stroke:rgba(180,220,228,.7)}
.brand-sub{color:var(--dim);font-weight:600}
.nav-links{display:flex;gap:clamp(12px,2vw,26px);align-items:center;font-size:.88rem;color:var(--dim)}
.nav-links a{transition:color .35s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-cta{border:1px solid var(--line);border-radius:40px;padding:8px 16px;color:var(--ink)!important;
  transition:border-color .35s var(--ease),background .35s var(--ease),box-shadow .35s var(--ease)}
.nav-cta:hover{border-color:var(--cyan);background:rgba(79,214,224,.09);box-shadow:0 0 24px -8px rgba(79,214,224,.7)}
@media(max-width:880px){.nav-links a:not(.nav-cta){display:none}}

/* ---------- hero ---------- */
.hero{max-width:var(--max);margin:0 auto;position:relative;
  padding:clamp(104px,15vh,168px) clamp(16px,4vw,44px) clamp(52px,8vh,86px);
  display:grid;grid-template-columns:1fr;gap:clamp(12px,3vw,40px);align-items:center}
@media(min-width:940px){.hero{grid-template-columns:1.04fr .96fr}
  .hero-copy{order:1}.mol{order:2}}
.mol{position:relative;min-height:clamp(300px,46vh,560px);border-radius:calc(var(--r) + 6px);overflow:hidden;
  background:radial-gradient(120% 100% at 60% 38%,rgba(22,39,58,.55),rgba(11,17,25,.2));
  border:1px solid var(--line);touch-action:none}
.mol canvas{position:absolute;inset:0;width:100%!important;height:100%!important;display:block;cursor:grab}
.mol canvas:active{cursor:grabbing}
.mol-fallback{position:absolute;inset:0;margin:auto;width:min(88%,460px);height:auto}
.mol.mol--webgl .mol-fallback{display:none}
.mol-tag{position:absolute;left:14px;bottom:13px;font-family:"IBM Plex Mono",monospace;font-size:.66rem;
  letter-spacing:.12em;color:var(--dim);background:rgba(11,17,25,.66);border:1px solid var(--line);
  padding:6px 11px;border-radius:30px;backdrop-filter:blur(4px)}
.hero-copy{max-width:38rem}
.eyebrow{display:block;margin-bottom:1.3rem}
.hero-sub{max-width:46ch;margin:1.5rem 0 1.9rem;color:var(--dim);font-size:clamp(1rem,1.2vw,1.14rem)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:40px;padding:13px 22px;font-size:.92rem;
  font-weight:600;font-family:"Hanken Grotesk",sans-serif;border:1px solid var(--line);cursor:pointer;
  transition:transform .5s var(--ease),background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease),color .35s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--cyan);color:#04141a;border-color:var(--cyan)}
.btn-primary:hover{background:#6fe1ea;box-shadow:0 14px 40px -14px rgba(79,214,224,.75)}
.btn-ghost{color:var(--ink)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* biological-age hero metric */
.bioage{margin-top:clamp(26px,4vh,40px);display:grid;grid-template-columns:auto 1fr;gap:18px 24px;align-items:end;
  padding:20px 22px;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(180deg,rgba(19,31,44,.72),rgba(19,31,44,.34));backdrop-filter:blur(4px)}
.bioage-k{display:block;font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.bioage-num{font-family:"Hanken Grotesk",sans-serif;font-weight:800;font-size:clamp(2.6rem,6vw,3.9rem);
  line-height:.9;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.bioage-yr{font-size:.9rem;font-weight:600;color:var(--dim);margin-left:8px;letter-spacing:0}
.bioage-delta{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.bioage-note{font-size:.82rem;color:var(--dim);line-height:1.45;max-width:34ch}
.delta{font-family:"IBM Plex Mono",monospace;font-size:.76rem;font-weight:500;padding:3px 9px;border-radius:20px;
  letter-spacing:.02em;white-space:nowrap}
.delta-good{color:var(--mint);background:rgba(123,224,176,.12);border:1px solid rgba(123,224,176,.28)}
.delta-watch{color:var(--amber);background:rgba(226,182,115,.1);border:1px solid rgba(226,182,115,.26)}
.delta-flat{color:var(--dim);background:rgba(159,178,194,.08);border:1px solid var(--line)}

.scroll-hint{position:absolute;left:clamp(16px,4vw,44px);bottom:14px;font-family:"IBM Plex Mono",monospace;
  font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;color:var(--faint)}
@media(max-width:940px){.scroll-hint{display:none}}

/* ---------- section shell ---------- */
section{padding:clamp(64px,10vh,128px) clamp(16px,4vw,44px)}
.section-head{max-width:var(--max);margin:0 auto 2.8rem}
.kicker{margin-bottom:1rem}
.lede{max-width:60ch;margin-top:1rem;color:var(--dim);font-size:1.06rem}
.lede strong{color:var(--ink);font-weight:600}

/* ---------- science / thesis ---------- */
.science{border-top:1px solid var(--line-2)}
.thesis-grid{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1fr;gap:1px;
  background:var(--line-2);border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden}
@media(min-width:820px){.thesis-grid{grid-template-columns:repeat(3,1fr)}}
.tcard{background:var(--bg);padding:clamp(24px,3vw,38px);transition:background .4s var(--ease)}
.tcard:hover{background:var(--panel)}
.tcard-n{font-family:"IBM Plex Mono",monospace;font-size:.74rem;color:var(--cyan);letter-spacing:.12em}
.tcard h3{margin:16px 0 10px}
.tcard p{color:var(--dim);font-size:.98rem}

/* ---------- pipeline ---------- */
.pipeline{border-top:1px solid var(--line-2)}
.pipe{max-width:var(--max);margin:0 auto;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(180deg,var(--panel),rgba(19,31,44,.55));padding:clamp(14px,2vw,22px);overflow:hidden}
.pipe-axis{display:grid;grid-template-columns:var(--lead) repeat(5,1fr);gap:0;align-items:center;
  padding:4px 0 14px;margin-bottom:6px;border-bottom:1px solid var(--line-2)}
.pipe-axis span{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--faint);padding-left:10px;border-left:1px solid var(--line-2)}
.pipe-axis .pipe-lead{border-left:0;padding-left:0}
.prow{display:grid;grid-template-columns:var(--lead) 1fr;gap:0;align-items:center;padding:15px 0;
  border-bottom:1px solid var(--line-2)}
.prow:last-child{border-bottom:0}
.prow-lead{padding-right:16px}
.prow-code{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--cyan);letter-spacing:.08em}
.prow-name{display:block;font-family:"Hanken Grotesk",sans-serif;font-weight:600;font-size:1rem;margin:2px 0 3px}
.prow-mech{display:block;font-size:.8rem;color:var(--faint);line-height:1.4}
.prow-track{position:relative;height:34px;border-radius:8px;
  background:repeating-linear-gradient(90deg,transparent,transparent calc(20% - 1px),var(--line-2) calc(20% - 1px),var(--line-2) 20%);
  background-color:rgba(11,17,25,.5);overflow:hidden}
.prow-fill{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:8px 0 0 8px;
  background:linear-gradient(90deg,rgba(42,166,178,.28),rgba(79,214,224,.42));
  transition:width 1.1s var(--ease)}
.prow-node{position:absolute;top:50%;width:13px;height:13px;border-radius:50%;transform:translate(-50%,-50%) scale(0);
  background:var(--cyan);box-shadow:0 0 0 4px rgba(79,214,224,.18),0 0 16px rgba(79,214,224,.7);
  transition:transform .5s var(--ease) .3s}
.prow-phase{position:absolute;top:50%;transform:translateY(-50%);font-family:"IBM Plex Mono",monospace;
  font-size:.66rem;letter-spacing:.06em;color:var(--ink);white-space:nowrap;padding:2px 8px;border-radius:20px;
  background:rgba(11,17,25,.7);border:1px solid var(--line);opacity:0;transition:opacity .5s var(--ease) .45s}
.prow.is-in .prow-fill{width:var(--w)}
.prow.is-in .prow-node{transform:translate(-50%,-50%) scale(1)}
.prow.is-in .prow-phase{opacity:1}
.prow:hover .prow-track{box-shadow:inset 0 0 0 1px rgba(79,214,224,.3)}
.pipe-foot{max-width:var(--max);margin:1.2rem auto 0;font-family:"IBM Plex Mono",monospace;font-size:.7rem;
  color:var(--faint);letter-spacing:.03em}
@media(max-width:720px){
  .pipe-axis{display:none}
  .prow{grid-template-columns:1fr;gap:12px;padding:18px 0}
  .prow-lead{padding-right:0}
  .prow-phase{left:auto!important;right:8px}
}

/* ---------- biomarker dashboard ---------- */
.dash{border-top:1px solid var(--line-2)}
.dash-grid{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:960px){.dash-grid{grid-template-columns:1.15fr .85fr}}

.trend{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:clamp(16px,2vw,24px);
  display:flex;flex-direction:column}
.trend-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:14px}
.trend-title{display:block;font-family:"Hanken Grotesk",sans-serif;font-weight:600;font-size:1.05rem}
.trend-sub{display:block;font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.06em;color:var(--faint);margin-top:5px}
.trend-latest{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.trend-latest-n{font-family:"Hanken Grotesk",sans-serif;font-weight:800;font-size:1.9rem;line-height:1;
  font-variant-numeric:tabular-nums;color:var(--mint)}
.trend-plot{position:relative;flex:1;min-height:200px}
.trend-plot svg{width:100%;height:auto;display:block}
.trend-legend{display:flex;gap:18px;margin-top:12px;font-family:"IBM Plex Mono",monospace;font-size:.66rem;
  letter-spacing:.05em;color:var(--dim)}
.trend-legend span{display:inline-flex;align-items:center;gap:7px}
.lg{width:16px;height:9px;border-radius:2px;display:inline-block}
.lg-band{background:rgba(123,224,176,.22);border:1px solid rgba(123,224,176,.45)}
.lg-line{height:2px;background:var(--cyan);border-radius:2px}

.cards{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:540px){.cards{grid-template-columns:1fr 1fr}}
@media(min-width:960px){.cards{grid-template-columns:1fr 1fr}}
.bcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:15px 16px;
  transition:border-color .4s var(--ease),transform .5s var(--ease)}
.bcard:hover{border-color:rgba(79,214,224,.28);transform:translateY(-2px)}
.bcard-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:9px}
.bcard-name{font-size:.86rem;font-weight:600;color:var(--dim)}
.pill{font-family:"IBM Plex Mono",monospace;font-size:.6rem;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 8px;border-radius:20px;white-space:nowrap}
.pill-optimal{color:var(--mint);background:rgba(123,224,176,.12);border:1px solid rgba(123,224,176,.3)}
.pill-watch{color:var(--amber);background:rgba(226,182,115,.1);border:1px solid rgba(226,182,115,.28)}
.pill-out{color:#eb9393;background:rgba(235,147,147,.1);border:1px solid rgba(235,147,147,.28)}
.bcard-val{display:flex;align-items:baseline;gap:8px;margin-bottom:12px}
.bcard-num{font-family:"Hanken Grotesk",sans-serif;font-weight:800;font-size:1.7rem;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.bcard-unit{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--faint)}
.bcard-delta{margin-left:auto;font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--dim);
  background:rgba(159,178,194,.08);border:1px solid var(--line);padding:2px 7px;border-radius:20px}
.bcard-track{position:relative;height:8px;border-radius:6px;background:rgba(11,17,25,.7);overflow:hidden;margin-bottom:7px}
.bcard-band{position:absolute;top:0;bottom:0;background:rgba(123,224,176,.22);
  border-left:1px solid rgba(123,224,176,.4);border-right:1px solid rgba(123,224,176,.4)}
.bcard-marker{position:absolute;top:50%;width:11px;height:11px;border-radius:50%;transform:translate(-50%,-50%) scale(0);
  background:var(--ink);box-shadow:0 0 0 3px var(--panel),0 0 0 4px rgba(79,214,224,.6);
  transition:left 1s var(--ease),transform .5s var(--ease) .25s}
.bcard.is-in .bcard-marker{transform:translate(-50%,-50%) scale(1)}
.bcard-scale{display:flex;justify-content:space-between;font-family:"IBM Plex Mono",monospace;
  font-size:.6rem;color:var(--faint)}

/* ---------- stats band ---------- */
.stats-band{border-top:1px solid var(--line-2);background:var(--bg-2)}
.stats{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:30px 20px}
@media(min-width:760px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{border-left:1px solid var(--line);padding-left:18px}
.s-num{font-family:"Hanken Grotesk",sans-serif;font-weight:800;font-size:clamp(2.1rem,4.4vw,3.2rem);line-height:1;
  color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.s-suf{font-family:"Hanken Grotesk",sans-serif;font-weight:700;font-size:1.1rem;color:var(--cyan);margin-left:5px}
.s-lbl{display:block;margin-top:11px;font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--faint);line-height:1.4}

/* ---------- cta ---------- */
.cta{border-top:1px solid var(--line-2)}
.cta-inner{max-width:760px;margin:0 auto;text-align:center}
.cta .kicker{margin-bottom:1.1rem}
.cta h2{margin-bottom:1rem}
.cta .lede{margin:0 auto 2rem;max-width:52ch}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;max-width:480px;margin:0 auto}
.cta-form input{flex:1;min-width:220px;background:var(--panel);border:1px solid var(--line);border-radius:40px;
  padding:13px 20px;color:var(--ink);font-family:"Inter",sans-serif;font-size:.94rem;
  transition:border-color .35s var(--ease),box-shadow .35s var(--ease)}
.cta-form input::placeholder{color:var(--faint)}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(79,214,224,.16)}
.cta-form .btn{white-space:nowrap}
.cta-fine{margin:1.4rem auto 0;max-width:46ch;font-size:.78rem;color:var(--faint);line-height:1.5}
.cta-fine.ok{color:var(--mint)}
.trust{max-width:var(--max);margin:clamp(48px,7vh,80px) auto 0;list-style:none;display:flex;flex-wrap:wrap;
  gap:14px 36px;justify-content:center;align-items:center;padding-top:clamp(28px,4vh,40px);border-top:1px solid var(--line-2)}
.trust li{font-family:"Hanken Grotesk",sans-serif;font-weight:600;font-size:1rem;color:var(--faint);
  letter-spacing:-.01em;opacity:.85;transition:color .4s var(--ease)}
.trust li:hover{color:var(--dim)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:clamp(38px,6vh,60px) clamp(16px,4vw,44px);background:var(--bg-2)}
.foot-top{max-width:var(--max);margin:0 auto 20px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-brand{font-family:"Hanken Grotesk",sans-serif;font-size:1.3rem;font-weight:700;letter-spacing:-.01em}
.foot-links{display:flex;gap:18px;font-size:.88rem;color:var(--dim)}
.foot-links a:hover{color:var(--cyan)}
.foot-bottom{max-width:var(--max);margin:0 auto;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--faint);letter-spacing:.03em}
.foot-bottom a{color:var(--dim)}.foot-bottom a:hover{color:var(--cyan)}

/* ---------- reveal + motion ---------- */
.js .reveal{opacity:0;transform:translateY(26px)}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity 1s var(--ease),transform 1s var(--ease)}
.js .hero-title .line{overflow:hidden;display:block;padding-bottom:.04em}
.js .hero-title .line>span{display:inline-block;transform:translateY(112%);transition:transform 1.1s var(--ease)}
.hero.loaded .hero-title .line>span{transform:translateY(0)}
.hero.loaded .reveal{opacity:1;transform:none;transition:opacity 1s var(--ease),transform 1s var(--ease)}
.hero .eyebrow{transition-delay:.05s}
.hero .line:nth-child(1)>span{transition-delay:.16s}
.hero .line:nth-child(2)>span{transition-delay:.3s}
.hero .hero-sub{transition-delay:.46s}.hero .hero-actions{transition-delay:.58s}.hero .bioage{transition-delay:.68s}

a:focus-visible,.btn:focus-visible,.nav-cta:focus-visible,.cta-form input:focus-visible,.foot-links a:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

@media (prefers-reduced-motion:reduce){
  .reveal,.js .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .hero-title .line>span{transform:none!important;transition:none!important}
  .prow-fill,.prow-node,.prow-phase,.bcard-marker{transition:none!important}
  *{scroll-behavior:auto!important}
}